The nail color collection will include Teenage Dream (a plummy pink sparkle), Not Like the Movies (metallic silver), Last Friday Night (a Crayola blue glitter), and The One That Got Away (a deepest dark berry purple.) Each polish will retail for $9, and will launch at Ulta in January.

Katy is known world-wide for her innovative style and is always surprising us with her wild nail designs. When we learned about Katy's love for lacquers, we couldn't resist the opportunity to work together to create this glamorous collection," says Suzi Weiss-Fischmann, OPI executive vice president and artistic director.